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cyanoacry

HN member
Joined
Tue, Oct 16, 2012, 3:03 AM UTC
HN karma
935
Public activity
77 items

About cyanoacry

an electrical engineer with a love of anime, headphones, and programming.

Caltech, Dabney House. Currently CTO of Esperto Medical (a medtech startup), focusing on blood pressure measurement.

Formerly SpaceX, Boeing Satellite Systems, and Phase Four. So far, I've somehow I landed 3 spaceships without incident... :) (I was reentry Mission Director for CRS-10, 11, and 12)

http://wsyntax.com

Recent public activity

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    Comment #39900144

    Thanks, updated! Please do CC me, as then I can vouch for where you came from :)

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    Comment #39899005

    Esperto Medical | https://esperto.health | Los Angeles Area | Hybrid In-office | Senior FPGA/Firmware Engineer We're building a medical device that allows us to measure BP continuo…

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    Comment #22631067

    Thank you for the write-up! It's a little depressing (but not entirely surprising) to hear that you couldn't get folks excited about safety -- I work in the aerospace field, and ou…

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    Comment #21477766

    Nice article! I used to work in this space (was formerly in charge of GNSS hardware at my company), and it's neat to see Galileo being put through its paces. I see now that the US …

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    Comment #21273043

    There are several I'm on (canard-aviators and gns480-users), and they've been active for something close to a decade. (And there are still emails every day!) Frustratingly, both of…

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    Comment #20953631

    Neat work! Question from someone who's familiar with RF atomic clocks but not optical -- how do you steer a laser in frequency? For RF, it all comes down to VCOs: if you want a dif…

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    Comment #20596371

    Maybe! I've worked with some SiC FETs, but the issue I ran into with FETs in amplifiers is that they're typically made with switching in mind. If you run most FETs in linear mode, …

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    Comment #20594456

    As someone who's worked on (and drafted!) several schematics in the aerospace industry, I have to say: there's no reason it has to be that way! The places I've worked have pretty r…

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    Comment #20464537

    > There is no evidence the heat dissipated will impact lifespan. I have to nitpick at this a little bit as a professional EE who works in high-reliability electronics. Wearout rate…

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    Comment #20443842

    There are a couple of counter examples, particularly in New Space startups. At 26, I was a Mission Director (SpaceX's equivalent to a NASA Flight Director) for Dragon re-entry and …

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    Comment #20397168

    And for those that wonder what a more "modern" scratchbuilt plane is like, check out the Cozy Mk IV: https://en.wikipedia.org/wiki/Cozy_MK_IV . Made from fiberglass and foam cut to…

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    Comment #19115910

    I highly recommend Nayuki's site: https://www.nayuki.io/ Lots of content (made mostly for themselves), but the writing style is pretty nice and there's a large variety of projects.…

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    Comment #16879209

    More relevant information (including the history of the project) from AOPA: https://www.aopa.org/news-and-media/all-news/2016/october/19...

  16. comment
    Comment #16822028

    Neat, it's always really cool to see folks get their feet wet in the DSP field! (Props to the author for trying to get through the dense Wikipedia pages.) Minor correction for the …

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    Comment #14159898

    1. Rockets 2. Cost of launch locks out potential customers and limits R&D uses. Global launch cadence is slow; getting into orbit is a multi-year adventure. 3. Yes, we're working o…

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    Comment #13995553

    John Muratore now works at SpaceX, but this is a pretty good interview with him during his NASA days. There's a particularly enlightening paragraph about how he retooled Houston's …

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    Comment #13460239

    You can try adding a parabolic (or circular) reflector: http://www.freeantennas.com/projects/template/ As with the original link, the antenna is directional (and since it's a refle…

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    Comment #13266967

    When I was a little kid, I rented out Apollo 13 almost religiously. Kept watching it, admired the guys in mission control (and the astronauts too, of course). A little later, in Ap…